8/15/2021 Update

Ctrl+Tab now cycles to the next tab
Ctrl+Shift+Tab now cycles to the previous tab
Middle mouse click on blank titlebar opens a new tab
Creating a new tab sets the input focus on the file list
Ctrl+Drag duplicates a tab
Ctrl+Shift+T opens last closed tab folder location
Change in folder automatically reloads the folder to resort the files
Fixed flickering issue when changing between tabs